01 / CUSTOM ELECTRONICS
A six-layer control board.
Six actuators, sensor inputs, ESP32 control and battery management, brought together on a custom board.
View the project overviewLimited public overview
Engineering work
Selected work.
Custom boards, embedded software and connected devices. Review the requirements, implementation and available project documentation.
Browse the full archive02 / PCB design + embedded firmware
CAN keypad and relay control
A two-board control system separates the operator’s keypad from the relay outputs. The handheld unit sends key events over CAN; the receiver maps each event to the corresponding relay.
Project detailsPCB and firmware development
03 / Firmware + hardware integration
Large-format LED bingo display
An ESP32 controls a large bingo display using WS2812 pixels. Wireless game updates select number highlights, with a pixel map linking each number to its panel position.
Project detailsFirmware and hardware integration
04 / Connected-device integration
Remote claw-machine control
The machine-control path moves browser commands over MQTT to an ESP32, while the existing Firebase services continue to handle accounts, balances, payments and session records.
Project detailsControl integration / camera work ongoing
05 / Firmware diagnosis + calibration
N64 joystick calibration
ATtiny84A firmware calibrates a replacement joystick for an N64 stick converter. The centre position and eight directional references define the usable travel and its mapping to the console’s expected output.
Project detailsDelivered firmware / follow-up refinementConceptual workflow
The calibration workflow
- Read the referencesUse the centre and eight directional positions.
- Map the stick travelRelate movement to the expected output coordinates.
- Review the outputCompare captured signals with applied movements.
- Check calibration retentionTest console reset and power cycling separately.
06 / Embedded telemetry + browser interface
GNSS and LoRa race tracking
Firmware and a browser interface for a radio-based race-tracking system. The work covers position and status packets, a LoRa-to-web gateway, map updates and GPX route logging.
Project detailsSystem development
07 / PCB layout + design review
Compact Class-D amplifier PCB
A restored car radio needs modern amplifier electronics within a fixed board outline. The design brings audio inputs, front and rear speaker connections, control signals and a vehicle supply into a 50 × 50 mm footprint.
Project detailsDesign and layout refinement
08 / Embedded firmware + prototype work
SmartLED firmware for ATtiny85
AbuLou SmartLED implements colour fades, stored scripts and motor patterns on an ATtiny85, controlled through a compact I2C command interface.
Project detailsFirmware and prototype work
09 / Sensing + prototype firmware
IMU and LiDAR alignment prototype
A handheld target-alignment prototype combines IMU orientation with LiDAR range measurements. The firmware brings the two inputs into a consistent update sequence before producing feedback.
Project detailsPrototype firmware
10 / PCB design
RP2040 interface PCB
An RP2040 interface board combines controller connections, power and signal interfaces. Routing and assembly views document the component layout and connector placement.
Project detailsPCB design
11 / Embedded sensing + wireless serial
Bluetooth temperature and humidity link
A DHT11 sensor supplies temperature and humidity readings to a Bluetooth serial link. The firmware checks the measurements before formatting them for an HC-05 receiver.
Project detailsDevelopment work
Prototype demonstration
A stair-climbing robot.
Original recording of the stair-climbing robot prototype.
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